KN

Kichio Nakajima

HC Hitachi Construction Machinery Co.: 23 patents #39 of 1,234Top 4%
HI Hitachi: 7 patents #5,859 of 28,497Top 25%
HM Hitachi Via Mechanics: 2 patents #20 of 109Top 20%
Overall (All Time): #113,703 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 26–32 of 32 patents

Patent #TitleCo-InventorsDate
4531369 Flushing valve system in closed circuit hydrostatic power transmission Eiki Izumi, Hiroshi Watanabe, Yukio Aoyagi, Kazuo Honma 1985-07-30
4528813 Control system for hydrostatic power transmission Eiki Izumi, Hiroshi Watanabe, Yukio Aoyagi, Kazuo Honma 1985-07-16
4520626 Hydraulic drive system for single rod cylinder Eiki Izumi, Hiroshi Watanabe, Yukio Aoyagi, Kazuo Honma 1985-06-04
4510750 Circuit pressure control system for hydrostatic power transmission Eiki Izumi, Hiroshi Watanabe, Yukio Aoyagi, Kazuo Honma 1985-04-16
4451893 Control method and control system for hydrostatic drive system Eiki Izumi, Hiroshi Watanabe, Yukio Aoyagi, Kazuo Honma 1984-05-29
4395199 Control method of a system of internal combustion engine and hydraulic pump Eiki Izumi, Hiroshi Watanabe, Yukio Aoyagi, Kazuo Honma 1983-07-26
4369625 Drive system for construction machinery and method of controlling hydraulic circuit means thereof Eiki Izumi, Kazuo Honma, Katsuro Abe, Masaaki Uno 1983-01-25